File Scavenger® Version 5 is a file "undelete" and data recovery utility for Windows® 8, 7, Vista, Server 2003, XP and 2000.
File Scavenger® can recover files that have been accidentally deleted (including files removed from the Recycle Bin, in a DOS window, from a network drive, from Windows Explorer with the SHIFT key held down) provided that recovery is attempted before the files are permanently overwritten by new data. File Scavenger® supports both basic and dynamic disks, NTFS compression, alternate data streams, sparse files, Unicode filenames, etc. Except in severe cases, both the file and the folder path leading to the file can be recovered.

File Scavenger® can also recover files from a reformatted or corrupted volume even when the volume has been deleted and its original position and size are unknown. File Scavenger® can scan an entire physical hard drive to look for traces of defunct volumes.

File Scavenger® uses advanced algorithms to handle disks with bad sectors and badly corrupted partitions. It can be installed on a hard drive or run from a portable storage device such as a memory card, removable drive, or CD. To run File Scavenger®, you must log on as a system administrator to the computer where data recovery is intended.

Files can only be restored if the disk areas allocated to the files have not been overwritten by new data. All recovered files should be validated for the integrity of the recovered data.

Groups trivial volumes under one subtree. Trivial volumes contain no or little user data. They may clutter up the results.

Shows deleted data in a separate subtree.

Supports VMFS long scan.

Saves the recovered data from multiple volumes in one operation.

Fixes bugs in Version 5.2.

Features in Version 5.2

Improved support for hard drives with 4K sector size.

Features in Version 5.1

The 64-bit version removes the limit on the number of files the program can scan, provided that sufficient physical memory is available.
The 32-bit version can scan no more than about ten million files.

Handling disk number changes when loading a session file. Windows assigns a disk number to a physical drive, such as "Disk 1",
"Disk 2", etc. Older versions of File Scavenger cannot load a session file if the disk numbers have changed.

New option to create a log for a long scan. The log can be used in a subsequent rescan to significantly reduce scan time.

Improved recovery of PDF documents in raw mode. In previous versions raw PDF documents are sequentially numbered and saved in a flat folder.
In version 5 they are arranged by author and date with the document title as the filename.

Improved ZFS and RAIDZ recovery. ZFS is a new file system used primarily by FreeNAS devices.

Improved recovery of the 64-bit ext4 file system.

Features in Version 4.3

Support for the ZFS file system and RAID-Z (single and double parity). ZFS is an open-source
file system and logical volume manager used in NAS devices (e.g. FreeNAS) and high-performance servers.

Support for the ReFS file systems. ReFS or Resilient File System is Microsoft's next generation file system for the Windows platforms.

Support for RAID 6.

Implementing custom RAID. Custom RAID is used when special algorithms is needed to reconstruct data.

Support for the VMware VMDK (flat, hosted sparse, and ESXi host sparse).

Support for the Microsoft VHD and VHDX (fixed, dynamic and differencing types).

Using 5 to 10% less virtual memory than version 4.1.

Features in Version 4.1

Significantly improved recovery for the following file systems: Ext3/4 (both 32- and 64-bit), UFS1 and UFS2, HFS+ and XFS.

New view filters to show only files meeting certain conditions. For example you can tell File Scavenger ® to show only filenames containing a certain string,
files larger than a certain size, files created after a certain date, etc. When the filters change the display is updated accordingly without having to rescan the drive.

A new dockable status panel with more details about the current session status. During recovery log messages displayed in this panel are also saved on a disk file.

The significantly improved Quick Scan mode can now quickly locate volumes for scanning. When it works Quick Scan yields uncluttered results.
The Long Scan can find more files but in many cases those include irrelevant files that need cleaning up later.

A professional license licensee can activate File Scavenger® on any computer only for his or her own use.
We reserve the right to refuse excessive activations where it is questionable that the requests are from the same
individual, such as activations on a very large number of computers or on too many geographically separated computers.

File Scavenger can be
downloaded from http://www.quetek.com/download.htm.
It can be used in demo mode for testing purposes. Demo mode allows saving files with up to 64 kilobytes of data.
(Saving a file in demo mode does not affect its future recoverability because File Scavenger® does
not modify the source disk.) You can also preview a picture file
(i.e., files with such extensions as JPG, BMP, PNG, TIF, GIF, etc.) of any size by
right-clicking on it and click Preview. A license can be purchased
online through the QueTek website.